baber/WOPTO huggingface dataset:
Patent GB-781377-A (GB)
Title: Molding plastic articles
Inventor: COLER MYRON ABRAHAM
IPC: H01M50/107
Filed: 1954-07-12
Abstract: 781,377. Moulding plastic articles from powder. MARKITE INTERNATIONAL CORPORATION. July 12, 1954, No. 20367/54. Class 87(2). [Also in Group XXXVI] A plastic article is made from two plastics which differ chemically from each other, at least one of the plastics comprising particles which are of irregular shape and less than 60 mesh in size, the two plastics being moulded together in a mould to produce a single article. The two plastics may each be in the form of a powder ; or one plastic may be in powder form and the other a moulding ; or two preforms may be co-moulded. The powder may be less than 100 mesh and may be made by feeding moulding powder into a disintegrating mill. The two different plastics may be (1) polymonochlorotrifluoroethylene and (2) polymethylmethacrylate or phenolic plastic ; of (1) polystyrene and (2) phenolic plastic or polymethylmethacrylate. In one example powder of one kind is filled into a mould 1, then a spacer 3 is removed to lower the powder level, powder of a different kind is filled in, another spacer is removed to lower both lots of powder, a plunger 4 is inserted and both lots are hot-pressed. In a second example one lot of powder is compressed before the second lot is filled into the mould. In a third example a bottom force 14 (Fig. 3 plan, Fig. 4 sectional elevation) is fitted into the lower end of cylinder 1 and a recess 15 in the force is filled with one kind of plastic particles and levelled off. Then a charge of a different kind of plastic particles is filled into the cylinder and the whole compressed hot. Fig. 6 shows a sleeve open at both ends and divided by a partition 34 into two chambers 35, 36. This sleeve is fitted into cylinder 1, the chambers are filled with different plastic particles, the sleeve is lifted out and the two lots of particles are hot-pressed to form a single article. In Fig. 7 a disc 44 of cured phenolic material having an elevated ring 45 machined thereon is united with pigmented phenolic powder 43 contained in a groove in a lower mould plate 41, by hot-pressing. By adding electrically-conductive material to the powder 43 an electric resistor may be made, Figs. 8 and 9 (not shown).
Patent GB-1365418-A (GB)
Title: Centrifugal machine
IPC: B04B9/12
Filed: 1972-05-02
Abstract: 1365418 Centrifugal filter FIVES LILLE-CAIL 2 May 1972 [4 May 1971] 20442/72 Heading B1D [Also in Divisions F2 and F4] A centrifugal dryer comprises a cylindrical perforated basket 10 mounted on the lower end of a driving shaft 12 driven by motor 18 and supported on frame 14. The basket is attached to the driving shaft 12 by means of a Hooke's universal joint 20, this universal joint being itself resiliently attached to both the shaft and basket by resilient steel strips 28 arranged in pairs in V-formation so that the joint may be displaced transversely relative to the axes of the shaft and basket. The shaft 12 is hollow and contains a piston to which rod 30 (Fig. 2) is fixed. The rod 30 may be lowered through a hole in the universal joint and into a corresponding hole in the basket shaft 26 to hold the basket fast with the shaft for discharge of solids by means of a fixed scraper. The rod and associated piston may alternatively be mounted on the basket (Fig. 5 and 6 not shown). A damping device may be provided to brake the transverse oscillations of the universal joint. This may take the form of deformable cells filled with liquid (Fig. 3 not shown) or rubber blocks (Fig. 4 not shown).
Patent GB-646798-A (GB)
Title: Improvements in or relating to windscreen wiper blades
IPC: B60S1/38
Filed: 1947-07-30
Abstract: 646,798. Windscreen - wipers. O'SHEA, W. E. July 30, 1947, No. 20552. [Class 138(i)] In a windscreen-wiper blade comprising a plurality of strips of flexible material secured within a backing member, the outer plies, constructed of natural rubber, are stepped back from the central ply .or pair of plies which are made of a petrol and oil resistant synthetic rubber-like material. Specifications 287,890, [Class 138(i)], and 523,486 are referred to. According to the Provisional Specification the outer plies may be made of material other than natural rubber which need not possess petrol and oil resisting properties.
Patent GB-205810-A (GB)
Abstract: 205,810. Ateliers H. CuÚnod Soc. Anon. Oct. 18, 1922, [Convention date]. No Patent granted (Sealing fee not paid). Safety cut-off valves.-A safety cut-off device for use in heating installations using liquid or gaseous fuel is actuated by an air thermometer having at least two intercommunicating chambers, one of which is heated by the burner. In the form shown the thermometer is coupled to a collapsable chamber arranged in a case 19 and adapted to actuate a catch 18. The catch, which is connected by a link 21 to a fixed lug 20 normally engages a weighted or spring-loaded lever 24 and so holds the valve in the open position. Should the burner be extinguished the catch is withdrawn and the valve permitted to close, and then remains closed until opened by hand.
Patent GB-423173-A (GB)
Title: Improvements in or relating to means for controlling the flow of a liquid to and from a series of receptacles in rotation
IPC: A23L3/16
Filed: 1933-07-22
Abstract: 423,173. Controlling distribution of liquids. RODGERS, F., 168, Rivermead Court, Hurlingham, London. July 22, 1933, No. 20694. [Class 46] [See also Groups VI and XXIX] Means for operating a common inlet or outlet valve for a series of receptacles so that fluid flows to or from each receptacle for a predetermined interval in rotation include a valve-actuating member and a rotary cam which, while the valve is at rest in one position for the predetermined interval, brings the actuating-member into such a position that at the end of the interval it can move the valve instantaneously into its next position. An arrangement for supplying and discharging milk to and from a series of pasteurizing tanks is shown. The inlet valve 6 has a fixed casing divided into compartments each of which is connected to a different treatment tank by a pipe 7. Liquid is delivered to each compartment successively through a conduit 26 attached to a rotary cover 19. The outlet valve 11 has a fixed casing with openings each connected to one of the treatment tanks by a pipe 12 and a rotary plug with a curved passage, one end of which can be brought successively into register with each opening of the casing. The cover 19 and the plug of the outlet valve are both mounted on a rotary shaft 24 and the arrangement is such that one treatment tank is being discharged while milk is being supplied to another. The valves are moved sharply from one position to the next at predetermined time intervals by an electric motor which drives, through reducing gearing, a shaft 44 carrying a cam 43 engaging a pivoted lever 35 with an adjustable weight 38. The lever 35 is connected by linkage 39 to a pawl engaging a ratchet wheel on a shaft 34 connected by bevel gearing 33 to the shaft 24. The moving parts of the valve are thus turned sharply each time the cam allows the lever 35 to fall. The same electric motor operates a pump 16 which draws liquid through the passage in the plug of the outlet valve. Means are provided for holding a clutch in the pump driving gear out of operation until a certain number of the tanks have been filled with liquid. Means are also provided for opening the switch of the motor automatically when all the tanks have been emptied after a cock in the supply pipe to the valve 6 has been closed. The motor may drive agitators in the treating tanks.
Patent GB-649470-A (GB)
Title: Improvements in or relating to signalling systems
IPC: H04W84/00
Filed: 1948-08-06
Abstract: 649,470. Electric selective signalling. WESTERN ELECTRIC CO., Inc. Aug. 6, 1948, No. 20806. Convention date, Aug. 7, 1947. [Class 40 (i)] A calling signal for a radio system comprises a plurality of distinctive audio frequencies transmitted simultaneously, so that the called station responds only to that signal which includes the pre-determined frequencies. The invention is described with reference to a plurality of mobile stations selectively called from a central office. The operator at the central office calls a particular mobile station by closing appropriate keys K1 ... K20 to put selected frequencies from generators G1 ... G20 into modulator M1 to modulate a carrier transmitted from A1 and received by all the mobile stations. At the called station, the modulating frequencies are detected at D1 and applied to an array of vibrating reeds S, each tuned to one of the selected frequencies so that when the reed contacts are coincidentally closed, valve 7 is energized to ring bell I. The removal of the handset H from its hooks opens contacts 4, 6 to put the array S out of circuit, and closes contacts 4, 5 to put the handset in circuit. An answer transmitted over M2, T2, A3 is received at the central office over A4, R2, D2, hybrid coil C, and earphones 3, the operator then' opening keys K1 ... K20 and either communicating over microphone 1 or connecting a caller on lines L1, L2 over jack C1 for communication with the mobile station. In order to reduce the time taken to the condition of simultaneous closing of the reed contacts of the called station, condensers 29 ... 43, Fig. 2, may be connected to be charged by the geographically preceding reed so that valve 44 conducts before all the reeds are in synchronism. The reeds may be timing forks, Fig. 3, 4 (not shown); they may be connected in series instead of in parallel ; they may be set into vibration by a common winding, Figs. 4, 5 (not shown) ; they may call by opening instead of closing contacts, Fig. 5 (not shown) the valve 7 may be replaced by a gas-filled diode, Figs. 3, 5 (not shown ) ; the valve 7 may be replaced by a locking relay, Fig. 4 (not shown).
Patent GB-1041119-A (GB)
Title: Improvements in or relating to the securing of deformable sheet metal elements
Inventor: ROSBOTTAM THOMAS ALBERT
IPC: B21D39/03
Filed: 1964-05-20
Abstract: 1,041,119. Jointing by forging; riveted joints. METAL BOX CO. Ltd. March 17, 1965 [May 20, 1964], No. 20876/64. Headings B3H and B3U. [Also in Division B8]. A method of securing one portion of ductile sheet metal 1 to another 4 by superimposing one on the other and clamping them around the area thereof to be secured, creating from the clamped area a substantially frusto-conical formation the sloping sides of which extend across a space formed between rigid walls, and by impact extrusion causing metal from the closed end 7, Fig. 3 (not shown), of the frustoconical formation to flow into said sloping sides thereby to effect deformation and interlocking thereof in said space. An apparatus for carrying out the method comprises a base member 10 supported by springs S and a fixed anvil 12 which has a tapered upper end 14, Fig. 6 (not shown). A spring-loaded hold-down 11 is mounted in the ram R of a press and contains a punch 13, connected to an air cylinder AC, and slidable in the hold-down. Operation.-As the ram R descends, the holddown 11 clamps the sheets together and because the springs S1 are stronger than the springs S pushes the base member 10 down, so that the end 14 of the anvil forms the two layers of metal 15, 16, Fig. 8 (not shown), to a frusto conical shape. The impact of the punch against the closed end 7 causes metal to flow into the sloping sides to produce the interlocking formation, Fig. 9 (not shown). In a modification the end 14 of the anvil is of circular cross-section and is smaller in diameter than the body of the anvil. The end 14 may also be of other than circular cross-section. The opposed faces of the anvil and punch may be mating convex or concave surfaces. In a further modification the holddown 11 is split longitudinally and has a recess 17, Fig. 11 (not shown), which together with the anvil forms a space in which the inter-locking occurs. The preferred thickness of the sheets is 0À010-0À025 inch and the preferred diameter of the finished joint is <SP>3</SP>/ 16  to <SP>5</SP>/ 16  inch.
Patent GB-194656-A (GB)
Title: Improvements in and relating to counting devices
IPC: B61L1/16
Filed: 1922-07-31
Abstract: 194,656. Krupp Akt.-Ges., F. March 10, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Counters actuated by electric means.-An electrically-operated counting device comprises two counter-mechanisms F, G in parallel circuits d<3>, d<4> each including a switch h<1>, i<1>, these circuits being in series with a common switch D. The switches h<1>, i<1> are interconnected so that one is opened when the other is closed, and, as shown on the drawing, are operated by coils b<2>, c<2> in circuit with the switches B, C. The drawing shows an arrangement for counting the vehicles passing in either direction along a railway track A. The switches B, C are arranged near one rail at less than the distance, between the wheels of any vehicle using the track. A vehicle moving in the direction of the arrow x momentarily closes the switch B and therefore the switch h<1> and opens the switch i<1>. These switches remain in their set position and as the vehicle closes the switch D the circuit to the counter F only is completed. The subsequent closure of the switches C, i<1> is ineffective since the switch D is not closed simultaneously. The invention is stated to be applicable for counting working operations of different kinds in a working plant.
Patent GB-150899-A (GB)
Title: Improvements in or relating to elastic non-metallic tension members for aircraft
IPC: B64C3/18
Filed: 1919-08-26
Abstract: 150,899. Blackburn Aeroplane & Motor Co., Lumley, C., and Flinton, B. Aug. 26, 1919. Capping. - Elastic non-metallic tension members for aircraft are provided with metal end connexions comprising an inner tube 4, Fig. 5, having a longitudinal division 6, through which the elastic member is inserted in a stretched condition, the tube 4 being subsequently compressed; and an outer ferrule 9, Fig. 6, which is formed at one end with a pair of flattened attachment ears 2, and is forced over the compressed inner tube. The assembled members mav be locked together by indenting, as shown at 9, pinning, or otherwise. Both members may be provided with a flange 7, 3 for abutment together in the assembled position as shown in Fig. 6.
Patent GB-1503887-A (GB)
Title: Pipe coating apparatus
IPC: B05C1/14
Filed: 1976-05-21
Abstract: 1503887 Apparatus for sheathing pipe with weight material D GARDNER 21 May 1976 20994/76 Heading B2L Apparatus for coating a pipe with weight material, e.g. concrete, comprises a roller 20 approximately below the path of a pipe 50 to be coated and carrying a conveyor belt 16, means 12 for receiving and dispensing by gravity flow a supply of weight material on to the belt 16, and means to move belt 16 so as to carry material from the dispensing means toward the pipe, the material being compressed between the belt and pipe and thus coating the pipe. Pipe 50 is moved helically, a plate 52 prevents concrete from falling off belt 16, movement of the pipe and/or conveyor 16 serves to draw a reinforcing mesh 22 and an outer wrap 24 helically around the pipe, and an adjustable backing plate 36 prevents sagging of the conveyor belt. Movable plate 30 adjusts the amount of concrete on the conveyor belt as shown, and the vertical height of mesh 22 in the layer is adjustable also. The head of concrete slurry in hopper 12 and a vibrator 70 serve to expel air bubbles from the coating. In a modification (Fig. 2, not shown) means are provided to off-set the outer wrap 24 relative to the coating material, a supplementary belt being provided to hold the edge of the coating until it is overlapped by the outer wrap of the next helical turn.
Patent GB-843199-A (GB)
Title: An improved pressure relief valve
Inventor: HOLTTUM WORSLEY
IPC: F16K17/08
Filed: 1957-07-04
Abstract: 843,199. Valves. BRITISH INSULATED CALLENDERS CABLES Ltd. July 3, 1958 [July 4, 1957], No. 21236/57. Class 135. A valve for relieving excess pressure comprises a housing 1, Fig. 2, clamping between its parts 7, 10 a flexible diaphragm 2 loaded by an adjustable loading spring 26 and carrying a cylindrical member 15. The member 15 which is closed at its end adjacent the spring slidably mounts a valve plunger 36 urged by a light spring 38 towards an annular seat 35 on the end of an outlet connection 32 from a chamber 3 to which pressure fluid is admitted through a copper gauze filter 46 and pipe 44. The open end of the member 15 is arranged just clear of the end wall 5 of the housing and fitted with a screw-threaded retaining ring 40. When pressure in the chamber 3 overcomes the loading of the spring 26 the diaphragm 2 is moved away from the end wall 5 , taking with it the member 15 and the ring 40 the valve plunger remaining on its seat until lifted therefrom by the ring 40. The outlet connection 32 may be connected by a pipe 65 to a chamber 52, Fig. 4, closed by a bursting diaphragm 56 which ruptures at a pressure equal to or less than that at which the valve opens to give a visual indication that the valve has operated.
Patent GB-789186-A (GB)
Title: Improvements relating to machines for delivering meal or other materials in measured quantities
Inventor: GLITHERO DONALD
IPC: F16H29/08
Filed: 1955-07-22
Abstract: 789,186. Variable-speed ratchet gear. SIMON, Ltd., H. June 28, 1956 [July 22, 1955] No. 21243/55. Class 80 (2). A pocketed drum g, which is rotated cyclically to deliver measured quantities of meal or other non-freeflowing material, is variably driven through alternating ratchets e by connecting- rods a, b, oscillated, through a bell-crank d and links i, by an eccentric m on a continuously driving shaft n. The bell-crank d oscillates on a fixed pivot h, and ratio variation is effected by turning, through a handwheel t, a pinion r tracking an arcuate rack s, which causes a bracket q, carrying the pinion and connected by links p to the common pivot of the eccentric sheave and links i, to move towards or away from the bell-crank d. With the links i, p adjusted nearly at right angles, as shown, maximum movement is imparted to the output shaft f which carries the drum g, whilst when the links i, p are adjusted to coincidence, output movement is zero.
Patent GB-1341751-A (GB)
Title: Hinge
IPC: E05D11/10
Filed: 1971-04-19
Abstract: 1341751 Hinge K LAUTENSCHLAGER JNR 19 April 1971 [7 April 1970] 21322/71 Heading E2F A hinge, as shown, comprises a socket 3 attached to a door 1 by fastening flange 4, an arm 5 attached to the furniture wall 2, and two links 6, 7 pivotally mounted on the arm 5 and the socket 3. A lug 10 of link 6 comes into contact with a resilient tongue 9 in the socket as the door approaches the closed position, and the tongue 9 produces a component of force to assist in closing the door. When the door is closed, the tongue 9 still has a component of force maintaining the door closed. The socket 3, tongue 9, spring 12 and flange 4 are advantageously integrally moulded of acetal resin.
Patent GB-728801-A (GB)
Title: Improvements in or relating to photographic cameras
Inventor: WILLIAMSON HAROLD ERNEST PETER
IPC: G03B13/02
Filed: 1953-07-31
Abstract: 728,801. Photographic cameras and focusing devices. MILBO PHOTOGRAPHIC, Ltd. Oct. 14, 1953 [July 31, 1953], No. 21348/53. Class 98 (1). A photographic camera comprising a body supporting a lens in a mount, flash bulb, battery, shutter-operated flashlight synchronizing means, and a plate or film holder mounted on the body by a plurality of telescopic struts is combined with a focusing device comprising a base adapted to be secured to the lens mount, a frame defining the field recorded by the plate or film and arranged forwardly of the base and a plurality of legs arranged rearwardly of the base and engaging in the telescopic struts to focus the field defined by the frame on the plate or film. As shown, a camera comprising a body 11 on the front wall of which are mounted the camera lens 12 and a pair of flashlamps in snap-fitting transparent domes 14, the lamp battery being located within the body together with shutteroperated synchronizing means, and which is connected by telescopic struts 22, 23 and a bellows 21 to a plate or film holder 20, is focused by passing legs 36 fixed to an apertured plate 33 into holes 24 in the camera body passing through the hollow centres of the struts, passing the aperture 34 of the plate 33 over the camera lens and securing it to the lens by a screw locking ring 31 whereby the film holder is located at a position defined by the legs, and placing a wire field-limiting mask 38 against the object to be recorded, the length of the limbs 36, 37 being so related to the focal length of the camera lens that the object and plate or film are in conjugate planes.
Patent GB-614507-A (GB)
Title: Improvements in or relating to wheels and axles for perambulators and like wheeled vehicles
IPC: B60B19/00
Filed: 1946-07-17
Abstract: 614,507. Vehicle wheels. MAULDETH'S, Ltd., and LONSDALE, F. E. July 17, 1946, No. 21379. [Class 144 (i)] The hub d of a perambulator or like wheel is secured on the axle-arm f by a pin h passed through opposed holes in the hub into engagement with an annular groove g in the axle. Clearances are left between the inner end of the hub and the squared shoulder on the axle e, and between the end of the axle and the closed end of the hub.
Patent GB-739113-A (GB)
Title: Anamorphotic ancillary lens system
IPC: G02B13/08
Filed: 1953-08-04
Abstract: 739,113. Lenses. ZEISS-STIFTUNG, C., [trading as ZEISS, C., [Firm of]]. Aug. 4, 1953 [June 20, 1953], No. 21434/53. Class 97 (1). An afocal anamorphosing system for addition to a normal objective D on the longer conjugate side thereof comprises a positive cemented cylindrical doublet adjacent the objective and a negative cemented cylindrical doublet, the cylindrical axes being parallel, the two outer surfaces of each doublet being of' opposite sign, the cemented surface of the negative doublet having a positive power and being concave to the positive doublet, the cemented surface of the positive doublet having a negative power and being convex to the negative doublet, the outer radii of each doublet being of opposite sign, the refractive index difference at each cemented surface being greater than 0.1. Preferably the outer radii of each doublet differ by less than 20 per cent while the radii of the cemented surfaces preferably lie within 30 per cent and 60 per cent of the focal lengths of the respective doublets. Data are given for one example.
Patent GB-422578-A (GB)
Title: Improvements in domestic water-heating systems
IPC: F24H1/20
Filed: 1933-07-31
Abstract: 422,578. Heating water. FISCHER, L. A., 43, Fernhall Drive, Ilford, Essex. July 31, 1933, No. 21470. [Class 64 (i)] A gas-heating unit for a domestic water tank comprises a U-tube A mounted on a cover plate P adapted to be attached to a tank manhole and provided with an elongated multi-jet gas burner O fixed in and extending along most of the length of one leg of the U-tube A, which has heat-conducting ribs and a chimney M. A thermostatic gas control K is mounted in the tank, and a pilot jet J, air control nut F, and gas jet control screw H are provided.
Patent GB-727426-A (GB)
Title: Improvements in or relating to adjustable brush assembly mounting devices
IPC: H01R39/38
Filed: 1952-08-27
Abstract: 727,426. Brush holders for dynamo-electric machines. CAMPBELL & ISHERWOOD, Ltd., and RAWLINSON, R. Sept. 25, 1953 [Aug. 27, 1952], No. 21500/52. Class 35. A brush holder support 11 is adjustably fixed to a machine part 12 by a stud 15 having a hexagonal flange the corners of which mate with notches 14 formed in a slot 13 provided in the support 11. Specification 727,427 is referred to.